NEW NEOTROPICAL MUSCOID FLIES. 



By Charles H. T. Townsend, 



Custodian of Muscoid Diptera, United States National Museum. 



The writer's publications on the Neotropical muscoid fauna date 

 back a quarter of a century. Previous to 1909 his most important 

 papers on this subject were three in number.^ Since that time, dur- 

 ing nearly five year's residence in Peru, he made considerable mus- 

 coid collections, which have been deposited in the United States 

 National Museum. The study of these and some other neotropical 

 material has resulted so far in the publication of nme principal 

 papers.^ The present paper is in continuation of the publication of 

 the results of identifying the Peruvian collections, with the inclusion 

 of a few other neotropical forms. 



It will be noted that certain changes in family names are here inau- 

 gurated. These have been made in conformity to the priority prin- 

 ciple, the family taking its name from the earHest genus belonging 

 thereto. 



Family CALIRRHOIDAE. 



PARAMYOCERA, new genus. 



Genotype. — Paramyocera discalis, new species. 



Intermediate between Myocera and Scotiptera, differing from former 

 chiefly in possessing discal abdominal macrochaetae, and from latter 

 in profile of occiput being vertical and not sloped forward inferiorly. 



1 Catalogue of the described South American species of calyptrate Muscidae, Ann. New York Acad. Sci., 

 vol. 7, 1892, pp. 1-44. On a collection of Diptera from the lowlands of the Rio Nautla in the State of Vera 

 Cruz, Aim. Mag. Nat. Hist., ser. 6, vol. 19, 1897, pp. 16-34; vol. 20, 1897, pp. 19-33, 272-291. The taxonomy 

 of the Muscoidean flies including descriptions of new genera and species. Smiths. Misc. Colls., vol. 51, 1908, 

 No. 1803, pp. 1-138. 



* Descriptions of new genera and species of muscoid flies from the Andean and Pacific coast regions of 

 South America, Proc. U. S. Nat. Mus., vol. 43, 1912, pp. 301-367. On the tribe Dejeaniini of the muscoid 

 family Hystriciidae with five new genera. Psyche, vol. 20, 1913, pp. 102-106. New muscoid flies mainly 

 Hystriciidae and Pyrrhosunae from the Andean montanya, Insec. Inscit. Menstr., 78 pp. in ten parts: 1, 

 pp. 144-148, vol. 1, 1913; 2, pp. 10-16; 3, pp. 29-32; 4, pp. 42-48; 5, pp. 81-96; 6, pp. 123-128; 7, pp. 133-144; 

 8, pp. 153-160; 9, pp. 169-176; 10, pp. 183-187, vol. 2, 1914. New Masiceratidae and Dexiidae from South 

 America, Journ. New York Ent. Soc, vol. 23, 1915, pp. 61-68. An acalyptrate genus of Muscoidea— A 

 polistiform genus of muscoid flies— A genus of hystriciine flies with white maggots, Insec. Inscit. Menstr., 

 vol. 3, 1915, pp. 41, 43-46. New Andean spaUanzaniine flies— New Peruvian hystriciine flies, Insec. 

 Inscit. Menstr., vol. 3, 1915, pp. 63-76. 



Proceedings U. S. National Museum, Vol. 49— No. 2115. 



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